The Mako Mossberg 500/590 M4 Style Stock Kit gives you the ability to adjust your length of pull for more control over your shotgun. This kit features recoil reducing technology, is made of polymer with an aluminum buffer tube, and comes in a black finish. This one piece adapter design features a drop-in instillation.

"Almost the most perfect piece of equipment for my all in one tactical shotgun. Drawback is length. I wrongly assumed the length of the stock would be similar to a standard telescoping stock. The problem is each "mechanism" adds some length (folding & then the compensating mechanism). This isn't compensated for in the total length of the stock. Fully collapsed, this stock is a little shorter than my other stock fully extended. For me i end up with two positions, full length or folded."